摘要
利用室内试验研究了素黄土、石灰土、石灰与粉煤灰(二灰)黄土、水泥土的渗透性。共选取了10组土测定其渗透系数,试验结果表明:3∶7配比的水泥土可以作为防渗土料,3∶7配比的石灰土可作为短期防渗隔水土料,二灰土不能担当此任;同时,发现各种改良土在养护至21d左右渗透系数有增大现象,这一机理需进一步研究。
The permeability properties of loess,lime-loess,lime-flash-loess and cement-loess were studied with laboratory experiments.The 10 kinds of samples were chosen in these experiments.The test results show that 3∶7 cement-loess can be used as an impervious material,3∶7 lime-loess can be used as a short-term impervious material,but lime-flyash loess can＇t be used for this work.At the same time,a phenomenon is observed that the permeability coefficients of all kinds of improved loess appeared to increase in curing for about 21 days,this mechanism needs further research.
出处
《建筑科学》
北大核心
2011年第11期41-43,共3页
Building Science
关键词
石灰土
二灰土
水泥土
渗透性
lime-loess
lime-flyash loess
cement-loess
permeability
